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| CAS号 | 56-87-1 |
| Item | Standard | Analysis data |
| Appearance | Off-White powder | conforms |
| Specific rotation[α]20/D | +25.0 to +27.0 Degree | 25.18º |
| Chloride (Cl) | Not more than 0.10% | <0.10% |
| Ammonium (NH4) | Not more than 0.10% | <0.10% |
| Heavy metal(Pb) | Not more than 20ppm | 6ppm |
| Arsenic(As2O3) | Not more than 1ppm | ＜1ppm |
| Loss on drying | Not more than 5.0% | 1.5% |
| Residue on ignition(sulfated) | Not more than 0.50% | 0.26% |
| Assay | 98.5% to 101.0% | 99.0% |
